current-supfile - gets you the latest and greatest lesstif sources, 
                  sans CVS directories
cvs-supfile     - gets you the latest and greatest lesstif sources,
                  with CVS directories.

All others will get you the release specified in their name.

The hope with the cvs-supfile is that at some point in the future we will
have anonymous cvs working on cvs.hungry.com, but until then, there is
no practical difference between the two releases.
